<template>
  <div class="checkout-address">
    <div class="text">
      <div class="none" v-if="!showAddres">
        您需要先添加收货地址才可提交订单。
      </div>
      <ul v-else>
        <li>
          <span>收<i />货<i />人：</span>{{ showAddres.receiver }}
        </li>
        <li><span>联系方式：</span>{{ showAddres.contact }}</li>
        <li>
          <span>收货地址：</span>{{ showAddres.fullLocation
          }}{{ showAddres.address }}
        </li>
      </ul>
      <a @click="openAddress(showAddres)" href="javascript:;" v-if="showAddres">修改地址</a>
    </div>
    <div class="action">
      <XtxButton class="btn" @click="openDialog">切换地址</XtxButton>
      <XtxButton class="btn" @click="openAddress({})">添加地址</XtxButton>
    </div>
  </div>
  <!-- 切换收货地址 -->
  <XtxDialog title="切换收货地址" v-model:visible="dialogVisible">
    <div
      @click="selectedAddress = item"
      :class="{ active: selectedAddress && selectedAddress.id == item.id }"
      class="text item"
      v-for="item in list"
      :key="item.id"
    >
      <ul>
        <li>
          <span>收<i />货<i />人：</span>{{ item.receiver }}
        </li>
        <li><span>联系方式：</span>{{ item.contact }}</li>
        <li>
          <span>收货地址：</span
          >{{ item.fullLocation.replace(/ /g, "") + item.address }}
        </li>
      </ul>
    </div>
    <template #footer>
      <div class="footer">
        <XtxButton
          @click="dialogVisible = false"
          type="gray"
          style="margin-right: 20px"
          >取消</XtxButton
        >
        <XtxButton @click="confirmAddress" type="primary">确认</XtxButton>
      </div>
    </template>
  </XtxDialog>

  <!-- 添加编辑组件 -->
  <AddressEdit @on-success="successHandler" ref="addressEditCom"> </AddressEdit>
</template>
<script>
import { ref } from 'vue'
import AddressEdit from './address-edit.vue'
export default {
  components: { AddressEdit },
  name: 'CheckoutAddress',
  props: {
    // 收货地址列表
    list: {
      type: Array,
      default: () => []
    }
  },
  // 1. 在拥有根元素的组件中，触发自定义事件，有没有emits选项无所谓
  // 2. 如果你的组件渲染的代码片段，vue3.0规范，需要在emits中申明你所触发的自定义事件
  // 3. 提倡：你发了自定义事件，需要在emits选项申明下，代码可读性很高
  emits: ['change'],
  setup (props, { emit }) {
    const showAddres = ref(null)
    const defaultAddress = props.list.find((item) => item.isDefault == 0)
    if (defaultAddress) {
      showAddres.value = defaultAddress
    } else {
      if (props.list.length) {
        showAddres.value = props.list[0]
      }
    }

    // 组件显示隐藏
    const dialogVisible = ref(false)
    // 默认通知父组件一个收货地址
    emit('change', showAddres.value && showAddres.value.id)

    // 记录当前选中的地址id
    const selectedAddress = ref(null)

    // 确认
    const confirmAddress = () => {
      //   dialogVisible.value = false;

      showAddres.value = selectedAddress.value
      // 通知父组件
      emit('change', selectedAddress.value?.id)
      dialogVisible.value = false
    }

    const openDialog = () => {
      // 置空
      selectedAddress.value = null
      // 关闭组件
      dialogVisible.value = true
    }

    // 打开添加编辑收货
    const addressEditCom = ref(null)
    const openAddress = (address) => {
      // 使用子组件的方法
      addressEditCom.value.open(address)
    }
    // 自定义事件
    const successHandler = (formData) => {
      // 判断是否存在id
      const address = props.list.find(item => item.id === formData.id)
      if (address) {
        for (const key in address) {
          address[key] = formData[key]
        }
      } else {
        // 需要克隆下，不然使用的是对象的引用
        const jsonStr = JSON.stringify(formData)
        props.list.unshift(JSON.parse(jsonStr))
      }
    }

    return {
      showAddres,
      dialogVisible,
      selectedAddress,
      confirmAddress,
      openDialog,
      openAddress,
      addressEditCom,
      successHandler
    }
  }
}
</script>
<style scoped lang="less">
.xtx-dialog {
  .text {
    flex: 1;
    min-height: 90px;
    display: flex;
    align-items: center;
    &.item {
      border: 1px solid #f5f5f5;
      margin-bottom: 10px;
      cursor: pointer;
      &.active,
      &:hover {
        border-color: @xtxColor;
        background: lighten(@xtxColor, 50%);
      }
      > ul {
        padding: 10px;
        font-size: 14px;
        line-height: 30px;
      }
    }
  }
}
.checkout-address {
  border: 1px solid #f5f5f5;
  display: flex;
  align-items: center;
  .text {
    flex: 1;
    min-height: 90px;
    display: flex;
    align-items: center;
    .none {
      line-height: 90px;
      color: #999;
      text-align: center;
      width: 100%;
    }
    > ul {
      flex: 1;
      padding: 20px;
      li {
        line-height: 30px;
        span {
          color: #999;
          margin-right: 5px;
          > i {
            width: 0.5em;
            display: inline-block;
          }
        }
      }
    }
    > a {
      color: @xtxColor;
      width: 160px;
      text-align: center;
      height: 90px;
      line-height: 90px;
      border-right: 1px solid #f5f5f5;
    }
  }
  .action {
    width: 420px;
    text-align: center;
    .btn {
      width: 140px;
      height: 46px;
      line-height: 44px;
      font-size: 14px;
      &:first-child {
        margin-right: 10px;
      }
    }
  }
}
</style>
